(Scroll down for video) A teenager of the New Jersey, worked with ISIS terrorists to assassinate the Pope during a visit to Pennsylvania, according to the Federal Bureau of Investigation (FBI).

Now, Santos Colon, Jr., 17, also known as Ahmad Shakoor of Lindenwold, pleaded guilty as an adult to one count of attempting to provide material support to terrorists.

According to documents filed in this case and statements made in court, Colon, a U.S. citizen, admitted that when he was 15 years old, he devised a plan to conduct an attack during the papal visit in Philadelphia.

The plot involved utilizing a sniper to shoot Pope Francis, during his Papal mass, and setting off explosive devices in the surrounding areas.

Colon contacted someone he believed would be the sniper, but in reality was an undercover FBI employee.

Colon engaged in target reconnaissance with an FBI confidential source, and instructed the source to purchase materials to make explosive devices.

FBI agents arrested Colon before he had the chance to act on his plan.

Colon faces a maximum of 15 years in prison and a fine of $250,000, or twice the gross amount of any financial gain or loss from the offense.